Peristalsis meaning

pĕrĭ-stôlsĭs, -stăl-
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The wavelike muscular contractions of the digestive tract or other tubular structures by which contents are forced onward toward the opening.
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The rhythmic, wavelike motion of the walls of the alimentary canal and certain other hollow organs, consisting of alternate contractions and dilations of transverse and longitudinal muscles that move the contents of the canal or organ onward.
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The wavelike muscular contractions of the digestive tract or other tubular structures by which contents are forced onward toward the opening.
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The wavelike muscular contractions in tubular structures, especially organs of the digestive system such as the esophagus and the intestines. Peristalsis is characterized by alternate contraction and relaxation, which pushes ingested food through the digestive tract towards its release at the anus. Worms propel themselves through peristaltic movement.
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(medicine) The rhythmic, wave-like contraction of the digestive tract that forces food through it.
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Origin of peristalsis

  • New Latin from Greek peristaltikos peristaltic from peristellein to wrap around peri- peri- stellein to place stel- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek περισταλτικός (peristaltikos) δύναμις (dunamis, “peristaltic action of the bowels, by which their contents are propelled"), from περιστέλλω (peristellō, “wrap around"), from περί (peri, “around") + στέλλω (stellō, “I place").

    From Wiktionary